Valve



(No Model.)

J. J. MORRISON.

VALVE.

Patented Nov. 11,1890.

Un ess STATES PATENT Urrrcn.

JAMES JOHN MORRISON, OF FLOYD, TEXAS.

VALVE.

SPECIFICATION forming part of Letters Patent No. 440,181, dated November 11, 1890.

' Application filed August 23, 1889- Serial No. 321,738; (No model.)

To all whom it may concern.-

Be it known that I, J AMES JOHN MoRRIsoN, a citizen of the United States, residing at Floyd, in the county of Hunt and State of Texas, have invented a new and useful Valve, of which the following is a specification.

This invention has relation to valves for use in steam-boilers, stand-pipes, and waterworks; and among the objects in view are to provide a cheap, simple, and efficient valve so constructed as to out off the supply of water upon the outside of the induction-port and to drain all water from the valve-body and the connecting-pipes above the same, thereby preventing freezing of the same and a consequent bursting.

With these general obiects in view the invention consists in certain novel features of construction hereinafter specified, and particularly pointed out in the claims.

Referring to the drawings, Figure l is a perspective of the valve in detail; Fig. 2, a longitudinal section of the same, showing it secured in the wall of a boiler; Fig. 3, a transverse section on line 00 m, Fig. 2; Figs. 4 and 5, details of the valve-collar and secondary valve-plug.

Like numerals of reference indicate like parts in all the figures of the drawings.

1 represents a preferably cylindrical valvebody provided with an internal bore extending from one end to near the opposite end. At each side of the body and communicating with the interior bore are eduction-ports 2, and at the closed end of the body and extending therefrom is a perforated lug 3, the perforation of which communicates with the internal bore of the body. The lug 3 is interiorly threaded, and in the same is mounted for reciprocation the valve-stem e, which passes through the internal bore and projects beyond the opposite end of the Valve-body. Within the valve-body and fitting the bore thereof and mounted upon the valve-stem is a diaphram or secondary valve 5, said diaphragm being perforated at its center, as at (3, and provided with opposite slots 7.

8 represents a valve-collar or bushing threaded in the lower or open end of the valvebody and having projecting outwardly therefrom an annular valve-seat 9, the exterior of which is of less diameter than that of the bushing, and the opening forming the seat is smaller than the internal bore of the valvebody and through said opening passes a valvestem 4. The bushing is provided with a series of minute perforations which communicate with the interior of the valve.

12 represents a conical valve-plug mounted on the end of the valve-stem and operating within the seat 9.

The operation of my invention is as follows: By opening the valve-plug through the medium of its stem, water passes through the valve-seat into the valve -body and out through the eduction-ports and pipes connected therewith. When the valve is open, it will be noticed that the perimeter of the secondary valve will be forced against the minute openings in the bushing and water prevented from escaping through the opening. By a reverse movement of the stem, so as to bring the plug to its seat and out off the supply of water, the secondary-valve will be withdrawn from over the openings and the water contained in the valve-body will drip through the minute openings of the bushing, and thus said body be thoroughly drained and a freezing of the valve by reason of water contained therein cannot occur.

Employing the valve in connection with a boiler, the exterior of the valve-seat is preferably threaded to coact with a similarly-formed perforation in the boiler, said valve-seat extending through the shell of the same and into the interior of the boiler.

It is obvious that the pipe-connections are to be provided with valves or stop-cocks which are to be closed when the valve 12 is brought to its seat.

Having described my invention, what I claim is- 1. The valve casing or body having oppositely-located ports 2 2 and provided with a perforated interiorly-threaded. lug or projection 3, in combination with the flanged bushing seated in said Valve-casing and having a valve-seat at its outer end, and perforations extending through the flange and the valvestem provided with a perforated diaphragm loo located within the valve-casing and having a valve-plug at its outer end, substantially as set forth.

2. The combination of the valve-casing having in the flange of the bushing, said diaphragm being provided with openings adapted to register with the bore of the bushing, substantially as set forth.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

JAMES JOHN MORRISON.

Witnesses: v

DENNIS G. SMITH, WILLIAM J. YOUNG. 

